211364404 has 12 divisors (see below), whose sum is σ = 370043044. Its totient is φ = 105637824.

The previous prime is 211364401. The next prime is 211364423. The reversal of 211364404 is 404463112.

It can be written as a sum of positive squares in 2 ways, for example, as 187744804 + 23619600 = 13702^2 + 4860^2 .

It is a super-2 number, since 2×211364404² = 89349822556550432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211364401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114 + ... + 20590.

Almost surely, 2^211364404 is an apocalyptic number.

It is an amenable number.

211364404 is a deficient number, since it is larger than the sum of its proper divisors (158678640).

211364404 is a wasteful number, since it uses less digits than its factorization.

211364404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22194 (or 22192 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 211364404 is about 14538.3769382968. The cubic root of 211364404 is about 595.6767048335.

The spelling of 211364404 in words is "two hundred eleven million, three hundred sixty-four thousand, four hundred four".